Rust AES CBC加密解密

[dependencies]

aes = "0.7.5"
block-modes = "0.8.1"
hex-literal = "0.2.1"
rand = "0.8.4"
bytebuffer = "0.2.1"
base64 = "0.13.0"

主要代码：

use aes::Aes256;

use block_modes::{BlockMode, Cbc};

use block_modes::block_padding::Pkcs7;

use rand::seq::SliceRandom;

type AesCbc = Cbc<Aes256, Pkcs7>;

 

const BASE_STR: &str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

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<br><br>fn gen_ascii_chars(size: usize) -> String {     let mut rng = &mut rand::thread_rng();     String::from_utf8(         BASE_STR.as_bytes()             .choose_multiple(&mut rng, size)             .cloned()             .collect()     ).unwrap() }   fn encrypt(key: &str, data: &str) -> String {     let iv_str = gen_ascii_chars(16);     let iv = iv_str.as_bytes();     let cipher = AesCbc::new_from_slices(key.as_bytes(), iv).unwrap();     let ciphertext = cipher.encrypt_vec(data.as_bytes());     let mut buffer = bytebuffer::ByteBuffer::from_bytes(iv);     buffer.write_bytes(&ciphertext);     base64::encode(buffer.to_bytes()) }   fn decrypt(key: &str, data: &str) -> String {     let bytes = base64::decode(data).unwrap();     let cipher = AesCbc::new_from_slices(key.as_bytes(), &bytes[0..16]).unwrap();     String::from_utf8(cipher.decrypt_vec(&bytes[16..]).unwrap()).unwrap() }

使用：

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fn main() {         let plaintext = "hello world";         let key = "01234567012345670123456701234567";         let enc = encrypt(key, plaintext);         println!("{}", enc);         let dec = decrypt(key, &enc);         assert_eq!(plaintext, enc);         println!("{}", dec); }

　　

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